ci: add code scanning (codeql) and badge (#34)

* ci: add code scanning with codeql and badge

* docs: fix spacing in readme

* fix: precommit fix

.github/workflows/codeql.yml

@@ -0,0 +1,33 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  analyze:
+    name: Analyze (javascript-typescript)
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+      packages: read
+
+    strategy:
+      fail-fast: false
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: javascript-typescript
+        build-mode: none
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
+      with:
+        category: "/language:${{matrix.language}}"

README.md

@@ -1,5 +1,7 @@
 # Introduction
 
+[![CodeQL](https://github.com/liatrio/liatrio-dora-api/actions/workflows/codeql.yml/badge.svg?branch=main)](https://github.com/liatrio/liatrio-dora-api/actions/workflows/codeql.yml)
+
 This an API to sit between our `liatrio-react-dora` components and your DORA metrics database.
 
 ## Metric Storage Compatibility